Keep in mind that the typical miss terrain clearance analysis isn't run just by looking at a simple comparison of gradients. Usually, the miss starts higher and the analysis looks at what gradients and profile will still clear the terrain profile - ie the aircraft's clearance will decrease during the miss but not to the extent that things get exciting. OEI, a simple gradient comparison analysis generally is not going to be terribly useful for commercial operations.
Whether takoff or miss, using a simple gradient analysis, rather than a discrete obstacle approach to the problem, usually is too weight limiting.